Slide 1 Orion Telecom Networks Inc Slide 1 VCL-MX Version 6 xcvcxv Updated: July, 2011Orion Telecom Networks Inc VCL-MX Version 6 80 E1, 160Mbps Voice & Data Multiplexer Product Presentation

Slide 2 Orion Telecom Networks Inc Slide 2 VCL-MX Version 6 Product Overview  VCL-MX Version 6 - E1 160Mbps Multiplexer supports DXC, data and voice traffic.  For DXC (cross-connect) application  80 x E1, 160Mbps Digital Access Cross-Connect. 80 E1 fully non-blocking cross connect at 64Kbps (DS-0) level (2480 DS-0 – any to any time-slot cross-connect)  For voice traffic, it supports the following interfaces:  FXO  FXS  E&M (2Wire / 4Wire)  Hot-Line (Ring-Down)  Ring Generator (75V RMS)  15-Way Conference  Magneto (GEN-GEN)  BRI ISDN (2B+D). Multi Service Platform

Slide 3 Orion Telecom Networks Inc Slide 3 VCL-MX Version 6  For data traffic, it supports the following interfaces:  Channelized E1 / Fractional E1 data  RS-232 asynchronous data  V.24 synchronous data / asynchronous data  64 Kbps, co-directional  V.35, V.36, X.21, V.11, RS530, RS449 synchronous, “n”x64Kbps data  10/100BaseT - Ethernet Bridge (Optical and Electrical)  Analog I/O Card (Dry Contact)  Digital I/O Card (TTL signal)  Universal DCE / DTE synchronous “n”x64Kbps data interface  BRI ISDN (2B+D).  8E1 plus 100Mbps Ethernet fiber optical transport interface along with the following:  EOW (Engineering Order Wire) channel for end to end installation and maintenance  Local and remote loop back test for diagnostics  1+1 Fiber Path protection  ALS (Auto Laser Shutdown) facility for eye safety  10/100M Ethernet Port - Ethernet data transmission rate complies with IEEE8 02.3

Slide 4 Orion Telecom Networks Inc Slide 4 VCL-MX Version 6 Features and Highlights:  Carrier class and cost-effective bandwidth provisioning equipment  Multi-service platform – may be used to provide a wide variety of voice and data services from single chassis  160Mbps, 80 E1 fully non-blocking cross-connect at 64Kbps (DS-0) level (2480 DS-0 – any to any time-slot cross-connect)  1+1 E1 Link Protection / E1 Port Redundancy (8 E1’s per each card)  1+1 Control Card Processor Redundancy  1+1 Cross-Connect / TSI Redundancy  1+1 Timing (Synchronization Clock) Redundancy. User selectable synchronization priority.  May be used in a Point-to-Point, Point-to-Multi point, Add-Drop (drop-insert), Tree and Star topology  V DC Power Supply Redundancy (Dual Power Input – allows the equipment to be powered from two separate sources

Slide 5 Orion Telecom Networks Inc Slide 5 VCL-MX Version 6 Features and Highlights:  Up to 144 FXO or 144 FXS voice channels per unit.  Up to 72 E&M 2-wire / 4/wire voice channels per unit  Universal Slots – slot independent system so that any type of interface card may be inserted and used in any card slot.  Supports CAS Custom / User Programmable ABCD Signaling  Bit Error Rate (BER) monitoring – BER thresholds to generate BER alarms automatically whenever alarm limits are exceeded  Supports Long Loops of up to 1200 Ohms  Supports A-law and Mu-law voice coding.  Provides a ring of ≥75 volts RMS into a load of 5 R.E.N. on each channel with a 0.30 Erlang traffic pattern (5 R.E.N. load = 5 parallel phone load on each line)  Telnet  SSH for secured access

Slide 6 Orion Telecom Networks Inc Slide 6 VCL-MX Version 6 Features and Highlights:  SNMP traps  Maintains Access Security Log  In-band and Out-of-band management  GUI (Graphical User Interface)  Network Management System (NMS): Remotely manage multiple units from a single central location  User Selectable Internal, External and Loop-timed clock synchronization priority options.

Slide 7 Orion Telecom Networks Inc Slide 7 VCL-MX Version 6 Synchronization Timing OptionsInternal Clock, Loop-Timed Clock, External Clock. User selectable synchronization priority Synchronization Sources Internal Clock, span clock timing derived from incoming HDB3 links (Loop-Timed), External Clock, 75 Ohms (TTL), Mbits and 120 Ohms (Bits clock) Default Option Internal Clock (Stratum 3)

Slide 8 Orion Telecom Networks Inc Slide 8 VCL-MX Version 6 System Architecture – Front View:

Slide 9 Orion Telecom Networks Inc Slide 9 VCL-MX Version 6 Front View:

Slide 10 Orion Telecom Networks Inc Slide 10 VCL-MX Version 6 Security and Password: System Access, Control and Management Options:  Telnet  SSH  CLI Control Interface (HyperTerminal or VT100)  Management and configuration commands may be executed from a VT100 terminal, Windows HyperTerminal, any DOS based system, Linux or UNIX based system, or Telnet (remote management)  SNMP V2 Traps (MIB File provided)  GUI (Graphical User Interface)  NMS (Network Management System). OAM: Operation And Management Ports  RS232 Serial Port  USB COM Port  10/100BaseT Ethernet for remote access.

Slide 11 Orion Telecom Networks Inc Slide 11 VCL-MX Version 6 Security and Protection  Secured Access via SSH V2  Password Protection: Password Protection in compliance with the mandatory clauses of the GR-815-CORE-2 specifications for secured access control  Logging: Maintains a log of all successful and un-successful attempts  Logged information includes the IDs, IP and MAC address of the accessing entities (applicable on Telnet and SSH)  Alerts the administrator with an SNMP Trap if the un-successful logging attempts exceed 3  Security Audit: All access log history is maintained for security audit purposes  Security log entry of any request or activity including that user-ID (including IP and MAC address, if applicable), to establish user accountability  Report Generation / Audit Trail Regulation compliance  Meets CE requirements  Complies with FCC, Part 68 and Part 15 sub part A specifications  Safety - UL 1459 Issue 2.

Slide 12 Orion Telecom Networks Inc Slide 12 VCL-MX Version 6 Thank you for your attention For more details visit us at our Website at Regional Office: Miami, Florida Orion Telecom Networks Inc Ponce de Leon Blvd. Suite 470, Coral Gables, FL U.S.A. Phone: , Fax: Website: Headquarters: Phoenix, Arizona Orion Telecom Networks Inc , Avenue of the Fountains, Suite # 108, Fountain Hills, AZ U.S.A. Phone: , Fax: Website: